996470640 has 320 divisors, whose sum is σ = 3966174720. Its totient is φ = 227266560.

The previous prime is 996470627. The next prime is 996470663. The reversal of 996470640 is 46074699.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 402687 + ... + 405153.

It is an arithmetic number, because the mean of its divisors is an integer number (12394296).

Almost surely, 2^996470640 is an apocalyptic number.

996470640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 996470640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1983087360).

996470640 is an abundant number, since it is smaller than the sum of its proper divisors (2969704080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

996470640 is a wasteful number, since it uses less digits than its factorization.

996470640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517 (or 2505 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 996470640 is about 31566.9231950154. The cubic root of 996470640 is about 998.8221599041.

The spelling of 996470640 in words is "nine hundred ninety-six million, four hundred seventy thousand, six hundred forty".